本文将mark下NVMe Namespaces相关notes。

  • What is the meaning of nvme0n1 nvme0n2 nvme1n1 nvme1n2 in Linux?
    • nvmeXnY: X means controller, Y means namespace
  • NVMe controller
    • A PCI Express function that implements the NVM Express interface
  • NVMe namespace
    • A namespace is a collection of logical block addresses (LBA) accessible to host software. A namespace ID (NSID) is an identifier used by a controller to provide access to a namespace. A namespace is not the physical isolation of blocks, rather the isolation of logical blocks addressable by the host software
  • A NVM Express controller may support multiple namespaces that are referenced using a namespace ID

无需理解LUNs。


无需理解vSAN。

参考资料:

  1. NVMe™ Namespaces:Micron Storage Solutions Engineering
  2. NVMe Namespaces
  3. Managing Nvme Namespaces
  4. What are nvme namespaces? How do they work?
  5. An NVM Express Tutorial